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Impacts of public transit delays and disruptions on equity seeking groups in Toronto – A time-expanded graph approach

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  • Liu, Rick Zhaoju
  • Shalaby, Amer

Abstract

This study employed graph theory techniques to evaluate the global efficiency of Toronto's transit network. Using global efficiency, which measures the ease with which riders could reach their destinations, we explored if disadvantaged riders suffered the same level of travel time delays as the general population during both minor (recurrent) service disturbances and major (non-recurrent) disruptions. We modified the global efficiency measure by applying weights representing origin-destination trip flows for six population groups of interest separately. We used a time-expanded graph, which we built using real-time data scraped from the public APIs of the Toronto Transit Commission. This approach allowed us to create travel time estimates that considered the effects of real-world headway performance on travel times over 16 days during the winter of 2019. Our analysis found that disadvantaged groups experienced similar reductions in global efficiency and similar increases in travel time during both routine delays and major transit disruptions compared to the general population. Groups with predominantly suburban travel patterns, such as Black and Low-Income riders, had slightly lower drops in global efficiency than the general population, showing their better resilience to delays and disruption.

Suggested Citation

  • Liu, Rick Zhaoju & Shalaby, Amer, 2024. "Impacts of public transit delays and disruptions on equity seeking groups in Toronto – A time-expanded graph approach," Journal of Transport Geography, Elsevier, vol. 114(C).
    • Handle: RePEc:eee:jotrge:v:114:y:2024:i:c:s0966692323002351
    DOI: 10.1016/j.jtrangeo.2023.103763
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    References listed on IDEAS

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    1. Allen, Jeff & Farber, Steven, 2019. "Sizing up transport poverty: A national scale accounting of low-income households suffering from inaccessibility in Canada, and what to do about it," SocArXiv ua2gj, Center for Open Science.
    2. Daniel (Jian) Sun & Yuhan Zhao & Qing-Chang Lu, 2015. "Vulnerability Analysis of Urban Rail Transit Networks: A Case Study of Shanghai, China," Sustainability, MDPI, vol. 7(6), pages 1-18, May.
    3. Javanmard, Reyhane & Lee, Jinhyung & Kim, Junghwan & Liu, Luyu & Diab, Ehab, 2023. "The impacts of the modifiable areal unit problem (MAUP) on social equity analysis of public transit reliability," Journal of Transport Geography, Elsevier, vol. 106(C).
    4. El-Geneidy, Ahmed & Levinson, David & Diab, Ehab & Boisjoly, Genevieve & Verbich, David & Loong, Charis, 2016. "The cost of equity: Assessing transit accessibility and social disparity using total travel cost," Transportation Research Part A: Policy and Practice, Elsevier, vol. 91(C), pages 302-316.
    5. Foth, Nicole & Manaugh, Kevin & El-Geneidy, Ahmed M., 2013. "Towards equitable transit: examining transit accessibility and social need in Toronto, Canada, 1996–2006," Journal of Transport Geography, Elsevier, vol. 29(C), pages 1-10.
    6. Chakrabarti, Sandip, 2015. "The demand for reliable transit service: New evidence using stop level data from the Los Angeles Metro bus system," Journal of Transport Geography, Elsevier, vol. 48(C), pages 154-164.
    7. Luyu Liu & Adam Porr & Harvey J. Miller, 2023. "Realizable accessibility: evaluating the reliability of public transit accessibility using high-resolution real-time data," Journal of Geographical Systems, Springer, vol. 25(3), pages 429-451, July.
    8. Lee, Jinhyung & Miller, Harvey J., 2020. "Robust accessibility: Measuring accessibility based on travelers' heterogeneous strategies for managing travel time uncertainty," Journal of Transport Geography, Elsevier, vol. 86(C).
    9. Stępniak, Marcin & Pritchard, John P. & Geurs, Karst T. & Goliszek, Sławomir, 2019. "The impact of temporal resolution on public transport accessibility measurement: Review and case study in Poland," Journal of Transport Geography, Elsevier, vol. 75(C), pages 8-24.
    10. Jenelius, Erik & Mattsson, Lars-Göran, 2012. "Road network vulnerability analysis of area-covering disruptions: A grid-based approach with case study," Transportation Research Part A: Policy and Practice, Elsevier, vol. 46(5), pages 746-760.
    11. Allen, Jeff & Farber, Steven, 2019. "Sizing up transport poverty: A national scale accounting of low-income households suffering from inaccessibility in Canada, and what to do about it," Transport Policy, Elsevier, vol. 74(C), pages 214-223.
    12. Brian Taylor & Eric Morris, 2015. "Public transportation objectives and rider demographics: are transit’s priorities poor public policy?," Transportation, Springer, vol. 42(2), pages 347-367, March.
    13. Turnquist, Mark A. & Bowman, Larry A., 1980. "The effects of network structure on reliability of transit service," Transportation Research Part B: Methodological, Elsevier, vol. 14(1-2), pages 79-86.
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